RTV2 ngundo elulwelo irabha abicah iintlobo ezahlukeneyo zokubumba ikhandlela zokuhombisa

inkcazelo emfutshane:

Ubushushu obusebenzayo be-silicone yokubumba ulwelo
Ubushushu obusebenzayo be-silicone yokungunda engamanzi buphakathi kwe -40 ℃ kunye ne-250 ℃

Iqondo lokushisa lokubunjwa kweemveliso ze-silicone zolwelo lichongwa ngokusekelwe kwiipropati zemveliso.Iqondo lobushushu begumbi irabha ye-silicone ivulcanized inokohlulwa ibe luhlobo lwe-condensation kunye nodidi lokongeza ngokwendlela yayo yokugungqa;inokwahlulwa ibe ziindidi ezimbini ngokwendlela yayo yokupakisha: icandelo elinesibini kunye nelinye.Ubume beebhondi ze-silicon-oksijeni ezenza ikhonkco eliphambili le-rubber ye-silicone inquma ukuba i-rubber ye-silicone ineenzuzo ezingenayo irabha yendalo kunye nezinye iirubha.Inomgangatho obanzi wokushisa wokusebenza (-40 ° C ukuya kwi-350 ° C) kwaye inokumelana nobushushu obuphezulu kunye nomgangatho ophantsi.

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Iinkcukacha zeMveliso

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Indlela yokudilizwa ngokukhawuleza kweemveliso zokubumba ze-silicone ngolu hlobo lulandelayo

Ingcebiso 1. Ukukhetha izinto eziphathekayo: Zama ukukhetha izinto ezigudileyo ukwenza i-master mold kunye nesakhelo sokubumba.Isakhelo sokubumba sinokwenziwa ngeebhloko zeplastiki zokwakha okanye iibhodi ze-acrylic.

Ingcebiso yesi-2. I-arhente yokukhulula isitshizi: I-arhente yokukhulula isitshizi kwi-master mold.Iiarhente zokukhululwa eziqhelekileyo zisekelwe emanzini, ezomileyo, kunye neoli.Ngokuqhelekileyo, i-agent-based release release agents kunye ne-resin-based release release agents zisetyenziselwa ukwenza i-molds efana nelitye elikhukhulayo kunye nekhonkrithi.Sebenzisa i-ejenti eyomileyo (ekwabizwa ngokuba yi-neutral) yokukhululwa, uhlobo lwe-polyurethane lusebenzisa i-oyile yokukhupha i-oyile, ukuba inani elincinci lokungunda liguqulwa, ungasebenzisa isepha yesitya okanye amanzi anesepha endaweni yoko.

RTV2 ukungunda elulwelo irabha abicah kwiintlobo ezahlukeneyo zokubumba ikhandlela zokuhombisa (3)

RTV2 ukungunda elulwelo irabha abicah kwiintlobo ezahlukeneyo zokubumba ikhandlela zokuhombisa (2)

RTV2 ukungunda elulwelo irabha abicah yeentlobo ezahlukeneyo zokubumba ikhandlela zokuhombisa (1)

Icebiso lesi-3: Vula isikhunta emva kokuqiniswa okupheleleyo: Ekubeni inkqubo yokunyanga ye-silicone engamanzi isuka ekuqinisweni kokuqala ukuya ekuqinisweni okupheleleyo, abantu abaninzi abazama ukuguqula ukubumba bavule ngokukhawuleza emva kokuqiniswa kokuqala.Ngeli xesha, i-silicone ayiqini ngokupheleleyo kwaye inokuqiniswa nje kuphela.Ukuba umaleko wangaphakathi awunyangeki, ukunyanzeliswa kwesikhunta ngeli xesha kuya kubangela iingxaki kwi-membrane ye-mucous ephiliswe ngokuyinxenye.Ke ngoko, kucetyiswa ngokubanzi ukuba uvule isikhunta emva kwe-12 ukuya kwiiyure ezingama-24.Oku kunokuthintela ingxaki yokuguqulwa okanye ukunyuka kwe-silicone mold..

Icebiso lesi-4: Khetha i-silicone efanelekileyo: Xa usebenzisa i-silicone engamanzi ukubumba imisebenzi yezandla ye-epoxy resin ebonakalayo, kufuneka ukhethe i-silicone efanelekileyo.Ukuba usebenzisa i-silicone yolwelo lwe-condensation kwaye unengxaki yokuncamathela ngumngundo, ungabeka umngundo we-silicone kwi-oveni.Bhaka i-mold kwiqondo lokushisa eliphakathi (80℃-90℃) iiyure ezimbini, kuxhomekeke kubukhulu be-silicone mold.Emva koko, linda ukungunda kwe-silicone ukuba kuphole kwaye emva koko usebenzise i-epoxy resin ukusombulula ingxaki yokuncamathela komngundo.Ukuba usebenzisa i abicah ulwelo additive ngungundo, ingxaki ngundo ukuncamathela mhlawumbi ukuba ukungunda abicah okanye master prototype ayicocekanga ngokwaneleyo, okanye kukho ingxaki umgangatho abicah okanye resin.

I-Rtv2 ye-Viscosity ePhantsi yokuBumba i-De Silicona i-Para Liquid Silicone Rubber yokuBunjwa kweKhandlela le-Wax yokuBumba-01 (4)

I-Rtv2 ye-Viscosity ePhantsi yokuBumba i-De Silicona i-Para Liquid Silicone Rubber ye-Wax Mold Candle Mold-01 (3)

I-Rtv2 ye-Viscosity ePhantsi yokuBumba i-De Silicona i-Para Liquid Silicone Rubber ye-Wax Mold Candle Mold-01 (5)

Izizathu zokuba kutheni i-silicone yokubumba ingaqini

Izizathu zokuba kutheni i-silicone yokubumba ingaqini inokuba ngenxa yezi ngongoma zintathu zilandelayo: 1:

Ubushushu buphantsi kakhulu.I-silicone yolwelo iya kuba nzima ukuyiqinisa ngaphantsi kwe-10 ° C.Le meko ngokuqhelekileyo yenzeke ngakumbi ebusika.Kule meko, inokusonjululwa ngokunyusa ubushushu begumbi ukuya ngaphezulu kwe-20℃.

Umlinganiselo we-harder awulunganga.Ngokubanzi, umlinganiselo wejeli yohlobo lwe-silica kwi-ejeli yokunyanga yi-100:2.Ukuba umyinge we-ejenti yokunyanga eyongeziweyo incinci kakhulu, ayiyi kubangela ukuba kungabikho kunyangwa okanye ubunzima bokunyanga.Ukongezelela, i-agent ephilisayo enikezelwa ngumenzi ngokuqhelekileyo ngumlinganiselo wobunzima kunokuba umlinganiselo womthamo.
Ijeli ye-silicone kunye ne-ejenti yokunyanga ayixutywanga ngokupheleleyo.Ukuba umxube awuxutywanga ngokulinganayo, kuya kubangela ukuqina okuyingxenye kunye nokungaqini ngokuyinxenye.Ngoko ke, xa uvuselela, nikela ingqalelo kwi-silicone eseleyo kwiikona zesitya.